Suction-cleaner.



J. H. TEMPL'IN.

SUCTION CLEANER.

` APPLICATION FILED SEM-.15, 19H- n 1,181,095. Patented Apr. 25, 1916.

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J.l H. TEMPLIN.

SUCTION CLEANER.

APPLICATION msn sEPr. 15. 1911.

Patented Apr. 25, 1916.

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UNITED STATES PATENT OFFICE.

JOSEPH I-I. TEMPLIN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNE- ASSIGNMENTS, TO GENERAL ELECTRIC COMPANY, A CORPORATION OF NEW YORK.

SUCTION-CLEANER.

Application led September 15, i911.

To all whom t may concern Be it known that I, JOSEPH H. TEMPLIN, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have in- Vented certain new and useful Improvements in Suction-Cleaners, whereof the following is a specification, reference being had to the accompanying drawings.

My invention relates more especially to cleaners of the type wherein the entire cleaning device is moved over the surface being cleaned.

An object of the invention is to provide a suction cleaner wherein there is a suction slot adjacent the front and rear edges of the base of the cleaner which suction slots are so constructed and connected that there is a substantially uniform and constant suction at each slot during the moving of the cleaner both in the forward and rearward directions.

A further object of the invention is to provide a cleaner of the aboveI type, wherein the construction of the base is such that there is a substantially equal inrushing of air at each side of each suction slot.

These and other objects will in part be obvious and will in part be hereinafter more fully described.

In the drawings which show by way of illustration one embodiment of the invention, Figure I, is a side elevation of a suction cleaner embodying my improvements, showing in dotted lines, the handle moved to vertical position for convenience in storage. Fig. II, is a top plan view of the cleaner, the handle being broken away in this view. Fig. III, is a bottom plan view of the cleaner. Fig. IV, is a vertical sectional view through the cleaner on the line IV,IV, of Fig.,II. Fig. V, is a detail sectional view showing the manner of providing the bearing for the motor with a lubricant. Fig.' VI, is a horizontal sectional view on the line VI, VI of Fig. IV.

The suction cleaner consists generally, of asupporting base 1, on which is mounted a casing 2, having a suction chamber 3, in which rotates a. fan 4. The fan 4, is rotated by the motor 5, mounted in suitable bearings in the casing 2, and in the motor casing 6, which is attached to the casing 2.

The supporting base 1, as herein shown,

y is substantially rectangular in horizontal cross-section. The upper part of the base Specification of Letters Patent.

Patented Apr. 25, 1916.

serial No. 649,423.

is provided with a circular opening 7 which leads tothe suction chamber 3. Adjacent .the forward edge of the supporting base l, is a suction slot S, which is preferably parallel with the front edge of the cleaner and located very close thereto. Adjacent the rear edge of the cleaner is a second suction slot 9, which is also parallel with said rear edge and located very close to the same. These suction slots 8, and 9, are connected by passages 10, and l1, respectively, with the opening 7, leading to the suction chamber 3. As clearly shown in Fig. III, the passages 10, and 11, as they appproach the opening 7, are contracted laterally as the opening 7, is much smaller in diameter than the length of the suction slots. These passages 10, and 11, as they are contracted laterally, increase slightly in depth, so that the various cross-sectional areas of the passages from the 4slots to the opening 7, are substantially equal.

The supporting base between the slots 8, and 9, is arched or otherwise shaped so as to form a. recess 12, which extends entirely across the supporting base, so that when the supportingbase rests on the surface being cleaned, said recess will be exposed at its ends, and the air allowed to circulate freely in the recess, beneath the raised portion or portions. By this construction, the air taken in by the slots 8, will in part come from the front of the slot, and will in part come from said recess in the rear of the slot. The same is true of the suction slot 9, and therefore by this construction, the inrushing air will be equally distributed onboth sides of each slot. By the above construction I have, in effect, the action of two suction nozzles connected with a common suction chamber. In other words, the recess in the base 1, extending entirely across the same, provides said base with two downwardly projecting parts` each of which is formed with a suction slot, and these downwardly projecting parts may, if desired, be considered independent separated suction nozzles. Furthermore, by my construction, where one slot is placed at the front edge of the base, and the other slot is at the rear edge of the base, I provide a construction wherein one suction slot is in advance of the other, and therefore` as the cleaner is moved over the surface being cleaned, the advance slot will take up a greater portion, while the rear slot following over the same surface, having an independent cleaning suction force, will take up the remainder and thereby, a much more efiicient cleaning action is accomplished for a given volume of air passing through the cleaning device, and also for a single passing of the cleaner over a given surface.

While Ifmay use any desired construction of suction creating device, I have shown herein a rotating centrifugal fan 4, which is formed of two parallel disks 13, and 14, connected by radial blades 15. These blades terminate short of the center of the disk and the lower disk is formed with an opening centrally thereof, which allows the air drawn in through the suction slots to pass into'the center of the fan and be forced out of the fan, as the same rotates. The casing 2, surrounding the fan andforming thesuction chamber 3, has a tangentially arranged discharge nozzle 16, which is connected with any suitable form of flexible dust receiving bag 17. Y

The motor 5, for propelling the fan, consists of an armature 18, and field magnets 19. The armature 18, is mounted in a suitable bearing 20, carried by the upper wall of the casing 2, and at its other end, said armature is mounted in a bearing 21, carried at the upper end of the casing 6, for the motor. A cap 22, is screwed into the extreme upper end of the motor casing and is provided with a suitable oil-hole, whereby a lubricant may be supplied to theupper bearing. The upper wall of the casing 2, is formed with an oil-port 23, leading to the side of the casing and registering with an opening in the motor casing, so that a suitable lubricant may be supplied to the lower bearing. The shaft 24, of the armature extends below the bearing` of the casing 2, and has rigidly secured thereto a spider bracket 25, which supports the disk 14, and through the radial blades 15, also supports the disk 13. The fan is so proportioned as to run close to the base 1. The motor may besupplied with a suitable source of currents and the conducting wires therefor may pass through the hollow handle 26.

From the above description, it will be noted that the suction creating device and the motor for propelling the same, together with the casings surrounding these parts, are concentrically disposed relative to the base 1, and therefore said cleaning device will rest rmly on the supportingl base, with little liability of being overturned.

In order that the cleaning device may be bodily moved upon the surface being cleaned,

' I have provided the handle 26, which is, as

above noted, hollow to receivethe conducting wires. This handle is provided with a clamping collar 27, at its lower end, in which collar is rigidly secured spring arms 28,

and 29. These spring arms at their lower ends are bent at right angles to the main part of the arm and are adapted to be inserted in suitable recesses 30, formed in the supporting base 1. The spring of the arms will firmly hold the ends seated in the recesses. It will be seen that this holding handle may therefore be freely moved up and down, relative to the cleaning device, and that the cleaning device is kept upright solely through the stability of the arrangement of parts above described. In order to retain the handle in a vertical p0sition when stored, I have formed the base with grooves 31, which are directly above the recesses 30. These grooves are sufficiently deep to receive the spring arms 28, and 29, when the handle is raised to vertical position, and will yieldingly hold said handle in this position. Inasmuch as the dust bag is connected at its outer end to the handle, as shown in Fig. I, said handle in the operation of the cleaning device should be positioned on the same side of the base as the lnozzle 16.

The suction cleaner is moved about over the surface being cleaned by the handle 26, and as the fan is rotated by the motor, a volume of air will be' caused to pass through the cleaner and out through the dust bag. This volume of air is drawn in to the suction chamber through the suction slots 8, and 9.

By making the supporting base of the cleaner rectangular in outline, and placin .the cleaning slots very close to the front and rear edges of the base, I am able to efiiciently clean the parts close to the baseboards, and in similar places.

It is obvious that minor changes in the del tails of construction of my invention ma be made, without departing from the spirit of my invention, as set forth in the apended claims.

Having thus described my invention I claim:

1. A suction cleaner including in combination a supporting base, a suction creating device mounted upon and movable with the base, said base havin unobstructed suction slots formed therein a jacent the front and rear edges of the base respectively, said base having its lower face between said slots shaped to form a recess or space extending from side to side of the cleaner and freely opening at each side from a point adjacent the inner side of one slot to a point adjacent the inner side of the other slot whereby the air may freely pass beneath the cleaner and enter the slots.

2. A suction cleaner including in combination a supporting base having a central opening in its upper face, a suction creating device mounted on and movable with the base, a casing inclosing said suction creating device, said base having unobstructed slots therein adjacent the front and rear edges thereof respectively, and unobstructed passages connecting the respective slots with the opening in the upper face of the base,

the walls of said passages extending to the side walls of the slots, said base havlng its lower face between the slots shaped to form a recess or space extending from side to side.

of the cleaner and freely opening at each side and from a point adjacent the inner side of one slot to a pointadjacent the inner side of the other slot whereby the airmay freely pass beneath the cleaner and enter the slots. i

3. A suction cleaner including in combination a supporting base having a central opening in its upper face, a suction creating device mounted on and movable with the base, a casing inclosing said suction creating device,v said base having unobstructed slots therein adjacent` the front and rear edges thereof respectively and unobstructed pas sages connecting the respective slots with the opening in the upper face of the base, the walls of said passages extending to the side Walls of the slots, said base having its lower` face between the slots shaped to form a recess or space extending from side to side of the cleaner and freely opening at each side and froma point adjacent the inner side of one slot to a point adjacent the inner side JOSEPH H. TEMPLIN.

Witnesses:

JAMES H. BELL, E. L. FULLERTON. 

